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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Solos; Embrapa Solos / UEP-Recife. |
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Data corrente: |
13/11/1996 |
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Data da última atualização: |
13/11/1996 |
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Autoria: |
LAL, R. |
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Título: |
Methods and guidelines for assessing sustainable use of soil and water resources in the tropics. |
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Ano de publicação: |
1994 |
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Fonte/Imprenta: |
Columbus, OH: Ohio State University/SMSS/USDA, 1994. |
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Páginas: |
78p. |
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Série: |
(SMSS Technical Monograph, 21). |
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Idioma: |
Inglês |
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Conteúdo: |
Degradation of soil and water resources, and environmental pollution are perceived to be major problems in the tropics. Vast areas of land are claimed to be accelerated erosion and desertification, compaction and hard setting, acidification, decline in soil organic matter content and biodiversity, and depletion in soil fertility. Theland area degraded by different processes in the tropics is estimed to be 915 x 10 6 ha by water erosion, 474 x 10 6 ha by wind erosion, 50 x 10 6 ha by physical degradation. Soil and environmental degradation, low productivity, and resource-based low-input agriculture go hand-in-hand. Soil and environmental degradation are perpetued by land misuse, and exploitative and fertility-mining systems of subsistence agriculture. Resource-poor farmers of the tropics are trapped in the ever-tightening grip of the soil degradation-low productively-poverty-low input-more degradation cycle. The concept of sustainability, useful and relevant as it is, needs to be made quantitative, objective, and reliable. There is a need to develop criteria and methods for quantitative assessment of sustainable use of soil and water resources. To do this is to: (i) identify soil and water indicators of sustainability, (ii) establish quantitative relationships between soil and water indicators and soil-modifying degradative processes on the one hand and productivity on the other, (iii) define critical limits of soil and water indicators in relation to threshold value beyond which productivity decline is... MenosDegradation of soil and water resources, and environmental pollution are perceived to be major problems in the tropics. Vast areas of land are claimed to be accelerated erosion and desertification, compaction and hard setting, acidification, decline in soil organic matter content and biodiversity, and depletion in soil fertility. Theland area degraded by different processes in the tropics is estimed to be 915 x 10 6 ha by water erosion, 474 x 10 6 ha by wind erosion, 50 x 10 6 ha by physical degradation. Soil and environmental degradation, low productivity, and resource-based low-input agriculture go hand-in-hand. Soil and environmental degradation are perpetued by land misuse, and exploitative and fertility-mining systems of subsistence agriculture. Resource-poor farmers of the tropics are trapped in the ever-tightening grip of the soil degradation-low productively-poverty-low input-more degradation cycle. The concept of sustainability, useful and relevant as it is, needs to be made quantitative, objective, and reliable. There is a need to develop criteria and methods for quantitative assessment of sustainable use of soil and water resources. To do this is to: (i) identify soil and water indicators of sustainability, (ii) establish quantitative relationships between soil and water indicators and soil-modifying degradative processes on the one hand and productivity on the other, (iii) define critical limits of soil and water indicators in relation to threshold value beyond w... Mostrar Tudo |
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Palavras-Chave: |
Avaliacao; Environmental impact assessment; Evaluation; Methods; Nature conservation; Regiao tropical; Soil sustainability criteria; Sustentabilidade; Sustentability; Tropical zones. |
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Thesagro: |
Água; Conservação; Conservação do Solo; Meio Ambiente; Método; Preservação da Natureza; Recurso Natural; Solo. |
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Thesaurus Nal: |
guidelines; natural resources; soil; soil conservation; tropics; water; water conservation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02712nam a2200433 a 4500
001 1556523
005 1996-11-13
008 1994 bl uuuu 00u1 u #d
100 1 $aLAL, R.
245 $aMethods and guidelines for assessing sustainable use of soil and water resources in the tropics.
260 $aColumbus, OH: Ohio State University/SMSS/USDA$c1994
300 $a78p.
490 $a(SMSS Technical Monograph, 21).
520 $aDegradation of soil and water resources, and environmental pollution are perceived to be major problems in the tropics. Vast areas of land are claimed to be accelerated erosion and desertification, compaction and hard setting, acidification, decline in soil organic matter content and biodiversity, and depletion in soil fertility. Theland area degraded by different processes in the tropics is estimed to be 915 x 10 6 ha by water erosion, 474 x 10 6 ha by wind erosion, 50 x 10 6 ha by physical degradation. Soil and environmental degradation, low productivity, and resource-based low-input agriculture go hand-in-hand. Soil and environmental degradation are perpetued by land misuse, and exploitative and fertility-mining systems of subsistence agriculture. Resource-poor farmers of the tropics are trapped in the ever-tightening grip of the soil degradation-low productively-poverty-low input-more degradation cycle. The concept of sustainability, useful and relevant as it is, needs to be made quantitative, objective, and reliable. There is a need to develop criteria and methods for quantitative assessment of sustainable use of soil and water resources. To do this is to: (i) identify soil and water indicators of sustainability, (ii) establish quantitative relationships between soil and water indicators and soil-modifying degradative processes on the one hand and productivity on the other, (iii) define critical limits of soil and water indicators in relation to threshold value beyond which productivity decline is...
650 $aguidelines
650 $anatural resources
650 $asoil
650 $asoil conservation
650 $atropics
650 $awater
650 $awater conservation
650 $aÁgua
650 $aConservação
650 $aConservação do Solo
650 $aMeio Ambiente
650 $aMétodo
650 $aPreservação da Natureza
650 $aRecurso Natural
650 $aSolo
653 $aAvaliacao
653 $aEnvironmental impact assessment
653 $aEvaluation
653 $aMethods
653 $aNature conservation
653 $aRegiao tropical
653 $aSoil sustainability criteria
653 $aSustentabilidade
653 $aSustentability
653 $aTropical zones
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 22 | |
| 21. |  | BRIEDIS, C.; SA, J. C. de M.; LAL, R.; TIVET, F.; FRANCHINI, J. C.; FERREIRA, A. de O.; HARTMAN, D. da C.; SCHIMIGUEL, R.; BRESSAN, P. T.; INAGAKI, T. M.; ROMANIW, J.; GONÇALVES, D. R. P. How does no-till deliver carbon stabilization and saturation in highly weathered soils? Catena, v. 163, p. 13-23, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Soja. |
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| 22. | | SERAFIM, M. E.; MENDES, I. de C.; WU, J.; ONO, F. B.; ZANCANARO, L.; VALENDORFF, J. D. P.; ZEVIANI, W. M.; PIERANGELI, M. A. P.; FAN, M.; LAL, R. Soil physicochemical and biological properties in soybean areas under no-till Systems in the Brazilian Cerrado. Science of the Total Environment, v. 862, 160674, 2023. p. 1-11| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 22 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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